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Chalcedony
Chalcedony

Eosphorite
Eosphorite



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Chalcedony
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Eosphorite

Chalcedony and Eosphorite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.55-2.703.05-3.08
1 7.18
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Fracture

Uneven, Splintery, Conchoidal
Subconchoidal, Uneven, Conchoidal

Cleavage

Absent
Poor on {100}

Mohs Hardness

6.5-75
2 10
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Chemical Composition

SiO2
Mn2+ Al(PO 4)(OH) 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Chalcedony and Eosphorite Chemical Formula

While comparing Chalcedony and Eosphorite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Chalcedony and Eosphorite chemical formula.

  • Chemical formula of Chalcedony- SiO2
  • Chemical formula of Eosphorite- Mn2+ Al(PO 4)(OH) 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Chalcedony and Eosphorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chalcedony and Eosphorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Eosphorite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 3.05-3.08 whereas that of Eosphorite is 3.05-3.08.